Sequential checking of railway control signals

    公开(公告)号:EP0005971A3

    公开(公告)日:1980-01-02

    申请号:EP79300945

    申请日:1979-05-25

    IPC分类号: B61L21/06 B61L07/08

    摘要: An electronic or computer-based railway control system Including further safety checks in addition to normal safety interlocking. The present system carries out checks to see that operations, such as print switching and signal setting, are carried out in the correct sequence for a given route having regard to the position and movement of a train as indicated by track circuits. In a computer-based system appropriate checking routines may be written into the computer soft-ware.

    Railway control communication system

    公开(公告)号:EP0005968A3

    公开(公告)日:1980-01-02

    申请号:EP79300940

    申请日:1979-05-25

    IPC分类号: B61L07/08 B61L19/06

    摘要: An electronic or computer-based railway control system wherein control signals are transmitted between a control or interlocking room and wayside or track equipment by means of time division multi-plexed signais. Several such T.D.M. communication systems are employed in parallel to provide redundancy, and each address location has a majority voting circuit, to determine a correct signal in the event of disagreement between signal, and an out-of-coincidence circuit to indicate which system is carrying the erroneous signal.